I am going to do some math here. Not just for the OP and others, but also to remind myself.
For sub-$1000 rifles, the Tikka T3 Lite is probably the best "light" rifle you can buy. I know that is an opinion, but it seems to be fairly well agreed upon by others. Assuming a Tikka will work you as far as ergonomics. Now for the math part:
I don't have a Tikka in .280, but I do have one in 30-06 so it is comparable. Added item on it is a Limbsaver recoil pad. Weights will vary 1-2 ounces in some cases, so we are just using this as a baseline. Also, I am ONLY comparing weight here. Not rifle operation or anything else. Just weight.
Tikka T3 Lite 30-06 Rifle bare with Limbsaver recoil pad: 6.18 pounds (6 pounds, 2.88 ounces)
With lightweight sling and 3 rounds in the magazine: 6.77 pounds (6 pounds, 12.32 ounces)
Stock with Limbsaver Recoil Pad: 30.93 ounces
Rifle in full hunting setup with Vortex Razor LHT 3-15x42mm scope, Modified Talley Low Rings (from Whittakers (16bore design)), and a scope sock: 8.16 pounds (8 pounds 2.56 ounces)
Scope is 19 ounces
Talley Rings are 2.25 ounces
So, we have that as a baseline. Let's start shaving weight!
For a thin-ish sporter barrel like the Tikka has, it will be about 1 ounce per inch cut. Tikkas in long action calibers (and my rifle specifically) are 23.4". So we can save 3.5 ounces cutting the barrel down to 20"
Fluting the barrel will save around 3 ounces according to the Tikka T3 Superlite weights and a conversation I had with Karl Kampfeld (already thin barrels so can't go too deep on the flutes)
Fluting the bolt with shave 1/2 ounce
Replacing the stock with a McEdge will save 4-6 ounces at best (probably less, not sure here because I have never weighed one; this thread says 3-4 ounces at most:
https://www.24hourcampfire.com/ubbt...2645/re-tikka-stock-weight-vs-edge-stock). If you go for a super ultralite stock (like a Wildcat) you might shave 10 ounces.
For the above, the stock and the fluting will, at best, shave 1 ounce per $50. More likely 1 ounce per $75 - $100 though.
Now to compare to the 2 most common factory ultralight rifles, a Fieldcraft and a Kimber Mountain Ascent in 30-06 to keep it apples to apples:
Tikka T3 Lite - $600 - 6 pounds, 3 ounces
Fieldcraft - $1600 - 5 pounds, 5 ounces
Kimber Mountain Ascent - $1800 - 5 pounds, 5 ouncesThe Fieldcraft will cost $1000 more for 14 ounces of weight savings. That is $71 per ounce of weight savings.
The Kimber will cost $1200 more for 14 ounces of weight savings. That $86 per ounce of weight savings.
Now, if we apply weight savings to the Tikka with cutting the barrel and fluting the barrel (assuming it will be done by the same gunsmith) and putting it in a McEdge stock we would have:
Tikka T3 Lite with fluted and cut barrel and a McEdge stock - $1500 - 5 pounds, 9 ounces
-- Assuming $500 for the stock and $400 for the fluting and cutting of the barrel and bedding the action in the McEdge; weight savings of 3.5 ounces from barrel cut, 3 ounces from fluting, and 3.5 ounces from McEdge